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Revue d'élevage et de médecine vétérinaire des pays tropicaux最新文献

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Outbreak of infectious bursal disease associated with acute septicaemic colibacillosis in adult prelayer hens. 与急性败血性大肠杆菌病相关的传染性法氏囊病在成年前蛋鸡中的爆发。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-02-01 DOI: 10.19182/REMVT.9527
I. Igbokwe, M. Salako, J. S. Rabo, S. Hassan
{"title":"Outbreak of infectious bursal disease associated with acute septicaemic colibacillosis in adult prelayer hens.","authors":"I. Igbokwe, M. Salako, J. S. Rabo, S. Hassan","doi":"10.19182/REMVT.9527","DOIUrl":"https://doi.org/10.19182/REMVT.9527","url":null,"abstract":"An outbreak of infectious bursal disease (IBD) occurred concurrently with acute septicaemic colibacillosis in 15 week old prelayer hens. The septicaemia was preceded by a subclinical IBD. Mortality in the outbreak began with lesions of septicaemia and Escherichia coli was isolated from the heart blood of the birds. After antibiotic treatment of the bacteraemia, mortality continued, spiked, declined and then ceased. IBD was confirmed by bursal lesions characterized by severe lymphocytolysis and cystic degeneration of the lymphoid follicles. Out of 253 birds, 42 (16.60%) died within eight days. The circumstances of the outbreak suggested that lack of IBD booster vaccination favoured the establishment of subclinical IBD, which suppressed immunity to predispose the birds to colisepticaemia.","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"23 1","pages":"110-3"},"PeriodicalIF":0.0,"publicationDate":"1996-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91007593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
[Experimental vaccination of broiler chickens against Newcastle disease in Burkina Faso using thermotolerant LaSota/A300 and V4/276 coated-millet vaccines]. [在布基纳法索使用耐热LaSota/A300和V4/276包膜谷子疫苗接种肉鸡新城疫的实验研究]。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
Nguyen-Ba-Vy, E Yerbanga, J M Demandiere, P Mercier
{"title":"[Experimental vaccination of broiler chickens against Newcastle disease in Burkina Faso using thermotolerant LaSota/A300 and V4/276 coated-millet vaccines].","authors":"Nguyen-Ba-Vy,&nbsp;E Yerbanga,&nbsp;J M Demandiere,&nbsp;P Mercier","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Vaccination against Newcastle disease with the thermotolerant LaSota/A300 and V4/276 coated-millet vaccines was tried in Ouagadougou, Burkina Faso, by feeding 298 European broiler chickens exhibiting maternal antibodies. Opportunistic infections, such as colibacteriosis, decimated 70-81% of the three vaccinated groups and 24% of control, before being eradicated by antibiotic therapy. The surviving chickens were challenged two months after vaccination with the Hertz 33/56 virus strain. This resulted in 100% deaths in the control group, 78% in birds vaccinated with the V4/276, 7% in birds fed with LaSota/A300, and in no death in the group given both vaccines at one week interval. These last two groups also exhibited high titres of 1HA antibodies before the challenge. The lyophilized LaSota/A300 and V4/276 vaccines kept high viral titres after 8-34 days' ambient temperature exposure during the cool season in Ouagadougou.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 4","pages":"279-83"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20184476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Occurrence of cowpox-like lesions in cattle in Israel. 以色列牛中出现牛痘样病变。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
I Yeruham, A Nyska, A Abraham, R Algazi
{"title":"Occurrence of cowpox-like lesions in cattle in Israel.","authors":"I Yeruham,&nbsp;A Nyska,&nbsp;A Abraham,&nbsp;R Algazi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Two different clinical forms of cowpox infection, which occurred sporadically in one dairy herd and one beef herd, are described. The agent was identified by virologic test and by electron microscopy, when a characteristic orthopoxvirus was noted. No systemic illness was diagnosed with any of the two forms and recovery was observed in 3-4 weeks. The epizootiology of the infection is discussed.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 4","pages":"299-302"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20182531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Preliminary study of the safety and immunogenicity of the attenuated VD47/25 strain of camelpoxvirus]. [骆驼痘病毒VD47/25减毒株安全性和免疫原性的初步研究]。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
Nguyen-Ba-Vy, L Guerre, G Saint-Martin
{"title":"[Preliminary study of the safety and immunogenicity of the attenuated VD47/25 strain of camelpoxvirus].","authors":"Nguyen-Ba-Vy,&nbsp;L Guerre,&nbsp;G Saint-Martin","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The safety and immunogenicity of the attenuated VD47/25 strain of camelpoxvirus were tested on 30 camel calves in Mauritania. Post-inoculation clinical symptoms were absent during the 40 days of observation. Serum samples collected during this period showed low levels of neutralizing antibodies (1/4-1/16). In vivo titration of a virulent strain of camelpoxvirus in vaccinated camels and control animals enabled the calculation of the PD50 (50% protective dose) which contained the equivalent of 10(3.7) TCID50 (50% cell culture infective dose). Other studies are still required to determine the dose of this vaccine needed to protect 95% of vaccinated animals.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 3","pages":"189-94"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20043246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental infection of three Nigerian breeds of sheep with the Zinga strain of the Rift Valley Fever virus. 三种尼日利亚绵羊被裂谷热病毒津加毒株感染的实验。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01 DOI: 10.19182/REMVT.9548
O. Olaleye, O. Tomori, J. L. Fajimi, H. Schmitz
{"title":"Experimental infection of three Nigerian breeds of sheep with the Zinga strain of the Rift Valley Fever virus.","authors":"O. Olaleye, O. Tomori, J. L. Fajimi, H. Schmitz","doi":"10.19182/REMVT.9548","DOIUrl":"https://doi.org/10.19182/REMVT.9548","url":null,"abstract":"Experimental infection of three indigenous breeds of sheep in Nigeria, namely the West African Dwarf (WAD), Yankasa and Ouda resulted in fatal disease with the Zinga Rift Valley Fever virus. Infected sheep of the three breeds responded by pyrexia within 24 h of infection, that lasted 6 to 7 days, but peaked between day 2 and 4 post-infection. Viraemia coincided with pyrexia and peaked (10(9) PFU/ml) 3 days p.i. in Yankasa and WAD sheep, but with highest titre (10(7.5) PFU/ml) in Ouda sheep. Zinga Rift Valley Fever virus infection of sheep was characterised by hyperactivity, watery and mucoid nasal discharges, projectiles and bloody diarrhoea, external haemorrhage and clinical manifestations of nervous disorders. Viraemia was followed by low level of antibody development in all the infected sheep. Haemotological changes included a sharp fall in the PCV, Hb concentration and total RBC count during the course of the disease. These changes were most severe in the Yankasa, followed by WAD and Ouda breeds. There were thrombocytopaenia, prolongation of prothrombin and clotting times in all the infected sheep. There was also progressive leucopaenia associated with lymphopaenia. The total protein and albumin levels were depressed, but the globulin level rose from day 5 p.i. The changes in the serum biochemical constituents included sharp and progressive increase in the level of alanine aminotransferase and aspartate aminotransferase. The sodium level decreased gradually while that of potassium was initially stable but later increased until the infected animals died. There was a significant increase in the level of blood urea nitrogen from day 3 p.i. that continued until the infected animals died. Gross and microscopic examinations of the carcasses of the infected sheep showed significant lesions in many organs, including disseminated intravascular coagulation.","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"98 1","pages":"6-16"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73053219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 30
[Integrated control of tropical parasitic diseases in animals]. [综合控制动物热带寄生虫病]。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
G Uilenberg
{"title":"[Integrated control of tropical parasitic diseases in animals].","authors":"G Uilenberg","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the past, parasite control in domestic animals has relied mainly on the use of drugs and pesticides. Although these compounds are still of great importance in the prevention and treatment of parasitic diseases, in recent years the emphasis has shifted to a more flexible approach, integrating various other control measures. The main reasons for this change are:--development of parasite resistance to the compounds used; --reduced development of new compounds to overcome resistance (increasingly more stringent regulations on toxicity and residues, resulting in very high research and development costs, insufficient return for industry because of the short life-span of new products due to resistance and because the market for compounds in developing countries is limited and poor);--increasing cost of new products for consumers;--problems associated with toxicity, environmental pollution and residues in animal products. Integrated parasite management makes use, where possible, of biological and mechanical control, of acquired and innate host resistance, and genetical, ecological, sanitary and regulatory procedures, although chemical control can seldom be entirely eliminated. Cost-effectiveness and sustainability in all respects are of primary importance.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 2","pages":"124-9"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19970869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Serological prevalence of Oestrus ovis infestation in Burkina Faso: evaluation using the ELISA technique]. [布基纳法索鹅发情病的血清学患病率:使用ELISA技术进行评估]。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01 DOI: 10.19182/REMVT.9516
L. Ouattara, P. Dorchies
{"title":"[Serological prevalence of Oestrus ovis infestation in Burkina Faso: evaluation using the ELISA technique].","authors":"L. Ouattara, P. Dorchies","doi":"10.19182/REMVT.9516","DOIUrl":"https://doi.org/10.19182/REMVT.9516","url":null,"abstract":"Sera from 421 Djallonke and Sahelian Bali Bali sheep from Burkina Faso were analyzed with ELISA tests using a crude antigen from stage 2 (L2) larvae of Oestrus ovis. Seropositive mean prevalence was 86.3% with no significant difference between both breeds. In Sahelian and Djallonke sheep optical densities (OD) were, at most, 450% and 250% higher, respectively, than those in control seropositive animals. In addition, a few Sahelian sheep displayed very high seropositivity (OD intensity compared to that of positive control animals), whereas seropositivity intensity was more homogenously distributed in Djallonke sheep. This study emphasizes the importance and usefulness of ELISA method of detection. It confirms the high prevalence of Oestrus ovis infestation in healthy animals, which would justify the use of strategic controls.","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"12 1","pages":"219-21"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81864035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
[Detection of blood antigens in Trypanosoma brucei brucei experimental infection in Boru, Lagoon cattle and Boro white zebus]. [博鲁、泻湖牛和博鲁白斑马实验感染布鲁氏锥虫血液抗原检测]。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
A Doko, A Verhulst, V S Pandey, P Büscher, V Lejon
{"title":"[Detection of blood antigens in Trypanosoma brucei brucei experimental infection in Boru, Lagoon cattle and Boro white zebus].","authors":"A Doko,&nbsp;A Verhulst,&nbsp;V S Pandey,&nbsp;P Büscher,&nbsp;V Lejon","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Borgu (n = 10), Lagoon (n = 10) and White Bororo zebu (n = 10) cattle were experimentally infected in Benin with a clone of Trypanosoma brucei brucei for evaluation of blood antigens using ELISA tests. None of the three non-inoculated control animals for each breed developed any infection. Borgu and Lagoon cattle developed a benign disease followed by spontaneous recovery, whereas White Bororo zebus developed a typical chronic disease, fatal within several months. Overall ELISA sensitivity to detect T. brucei antigens was 20.46%, clearly lower than that of the buffy coat method to detect parasites (40.24%). The sensitivity of ELISA tests differed greatly according to the type of animals and the dynamics of infection. It was highest in Borgu cattle. (44.44 %), which had high parasitaemias of short duration and lowest in White Bororo zebus (4.09%), which had low and intermittent parasitaemias. To increase the sensitivity of ELISA tests by decreasing the cut-off point of optical density (threshold of positivity) from 0.050 to 0.025 would highly compromise the test specificity. The false negatives at the beginning of the infection and false positives after spontaneous cure further compromise the validity of ELISA tests for diagnosis of active T. brucei infections.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 3","pages":"207-11"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20043248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Outbreak of infectious bursal disease associated with acute septicaemic colibacillosis in adult prelayer hens. 与急性败血性大肠杆菌病相关的传染性法氏囊病在成年前蛋鸡中的爆发。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
I O Igbokwe, M A Salako, J S Rabo, S U Hassan
{"title":"Outbreak of infectious bursal disease associated with acute septicaemic colibacillosis in adult prelayer hens.","authors":"I O Igbokwe,&nbsp;M A Salako,&nbsp;J S Rabo,&nbsp;S U Hassan","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An outbreak of infectious bursal disease (IBD) occurred concurrently with acute septicaemic colibacillosis in 15 week old prelayer hens. The septicaemia was preceded by a subclinical IBD. Mortality in the outbreak began with lesions of septicaemia and Escherichia coli was isolated from the heart blood of the birds. After antibiotic treatment of the bacteraemia, mortality continued, spiked, declined and then ceased. IBD was confirmed by bursal lesions characterized by severe lymphocytolysis and cystic degeneration of the lymphoid follicles. Out of 253 birds, 42 (16.60%) died within eight days. The circumstances of the outbreak suggested that lack of IBD booster vaccination favoured the establishment of subclinical IBD, which suppressed immunity to predispose the birds to colisepticaemia.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 2","pages":"110-3"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19970867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In vivo and in vitro characterization of two camelpoxvirus isolates with decreased virulence. 两个毒力降低的骆驼痘病毒分离株的体内和体外特性。
Revue d'élevage et de médecine vétérinaire des pays tropicaux Pub Date : 1996-01-01
C K Otterbein, H Meyer, I C Renner-Müller, E Munz
{"title":"In vivo and in vitro characterization of two camelpoxvirus isolates with decreased virulence.","authors":"C K Otterbein,&nbsp;H Meyer,&nbsp;I C Renner-Müller,&nbsp;E Munz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Two camelpoxvirus (CPV) strains isolated from camels with generalized skin-disease were serially passaged on Vero cells. Various phenotypic properties were investigated in vitro and in vivo and compared with those of the corresponding wildtype strains. In many aspects no differences were observed. However, in a mouse model both passaged strains proved to be highly attenuated. In addition, both strains failed to replicate in a cell line derived from camel skin cells. Comparison of physical maps established for enzymes HindIII and Xhol revealed deletions accounting for a total of 22 kbp in one attenuated strain. In the second strain only minor alterations were noted.</p>","PeriodicalId":21379,"journal":{"name":"Revue d'élevage et de médecine vétérinaire des pays tropicaux","volume":"49 2","pages":"114-20"},"PeriodicalIF":0.0,"publicationDate":"1996-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"19970868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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